breisach



UNITEB STATES PATENT GIVIPICE.

L. R. BREISACH,

YORK, N. Y.

ROTATING- BLAST-PRODUCING' CHAIR.

Speccaton of Letters Patent No.

To all whom it may concern:

Be it known that I, LEOPOLD RICHARD BREISACH, of the city and State of New York, have invented Blast-Producing Chairs to Effect Cooling the Persons who Make Use of Them; and I do hereby declare that the following is a full and exact del scription of the construction and operation of the same, reference being had to the accompanying drawing and to the letters of reference marked thereon.

The nature of my invention consists in the combination of a. portable rotary chair with double acting side bellows and in the application of a mechanism by which with little muscular exert-ion, a constant current of air can be obtained alternately from the two side pipes which are fixed on the bellows, in order to cool the person, which is sitting on the chair.

To enable others skilled in art to make and use my invention I will proceed to describe the construction and operation of such a chair.

A rotary chair consists of two parts A and B viz.the upper rotating part A and the lower not. rotating part B. The two parts are connected in the center by a spindle D which is iixed on the upper part A and is moving in a hole of the lower part B. On this lower part are screwed on the two side stretchers of the chair two pairs of bellows C, C, one, on the right side, and the other on the left side. Each of these bellows have an inlet and an outlet of air Leather strips are fastened on the bottom of the inside boards of the bellows (h).

On the front and back stretchers of the chair is placed a shaft (a) on the center of which are fastened two levers (b)` with rollers on their ends (g). On the front part of the shaft (a) is fastened the main lever' (c) which by means of a string can be 19,343, dated February 16, 1858.

drawn to the right or to the left side. This mainv lever may be placed on the back side of the chair but the former arrangement is preferable.

If the main lever (c) is fastened in the front of the chair the whole operates as follows: If the sitting person turns a little with the upper part A to the left side, the string being fixed on the upper part A and on the main lever (c) it is drawn in the same direction, and communicates its motion to the shaft, and this to the center lever b, which with its roller (g) presses the bellows on the left side and forces the air out through the pipes f, and cools the operator, and in addition to that the right side bellows are drawn open for sucking the air in the bellows. If the motion of the operator is then reversed the same effect takes place on the right side. Such a mechanism and arrangement can be applied also to other not rotating chairs, the strings are then running over rollers and on their ends, right and left, are fastened a pair of stirrups or other foothold and the whole is set and kept in motion by the two feet of the operator.

I do not claim the arrangement of stationary seats with one pair of bellows, with one foot to be worked upon, by a kind of pump handle in order to produce a current of air, but

I do claim- The combination of portable rotary chairs with double acting two pairs of side bellows and the mechanism herein described by which with little muscular exertion constant currents of air are obtained for cooling the operator.

New York December 2d 1857.

L. R. BREISACI-I. lVitnesses HENRY L. SCHRADER, FRIEDRICH I-IENKE. 

